It works. Just add an onchange event handler to your controlling component. The handler makes an async call to a remote method with the selected value as a parameter. (Seam.Component.getInstance('yourBeanName').yourMethod(param)) When the response is received, a callback method is called. It then fills the select options with the 'things' it's got. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3972084#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...